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Priority claimed from FI822141Aexternal-prioritypatent/FI64780C/fi
Priority claimed from FI831635Aexternal-prioritypatent/FI67482C/fi
Application filed by Hantaaki OyfiledCriticalHantaaki Oy
Priority claimed from EP19830303431external-prioritypatent/EP0097054B1/de
Application grantedgrantedCritical
Publication of ATE37288T1publicationCriticalpatent/ATE37288T1/de